package com.sky.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceImpl implements UserService {
    @Autowired
    private WeChatProperties weChatProperties;
    public static final String WX_LOGIN="http://api.weixin.qq.com/sns/jscode2session";
    @Autowired
    private UserMapper userMapper;
    @Override
    public User UserLogin(UserLoginDTO userLogindTO) {
        String openid = GetOpenid(userLogindTO);
        if(openid==null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        User user = userMapper.getbyopenid(openid);
        if(user==null){
            user=User.builder().
                    openid(openid)
                    .createTime(LocalDateTime.now()).build();
            userMapper.insert(user);


        }
        return user;


    }

    private String GetOpenid(UserLoginDTO userLogindTO) {
        Map<String,String> map=new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code", userLogindTO.getCode());
        map.put("grant_type","authorization_code");
        String json = HttpClientUtil.doGet(WX_LOGIN, map);
        JSONObject jsonObject = JSONObject.parseObject(json);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}
